[gegl] Fix missing include path for out of tree build

[Daniel Sabo <daniels src gnome org>]

commit dce908a7de8481071afe2d0e1356518a8d52e768
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Sun Dec 1 07:31:51 2013 -0800

    Fix missing include path for out of tree build

 operations/Makefile-common.am |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/operations/Makefile-common.am b/operations/Makefile-common.am
index 0c1bfcb..ea7b0dc 100644
--- a/operations/Makefile-common.am
+++ b/operations/Makefile-common.am
@@ -7,7 +7,9 @@ libgegl = $(top_builddir)/gegl/libgegl-$(GEGL_API_VERSION).la
 op_libs = $(DEP_LIBS) $(BABL_LIBS) $(libgegl)
 
 AM_CPPFLAGS = \
+       -I$(top_builddir) \
        -I$(top_srcdir) \
+       -I$(top_builddir)/gegl \
        -I$(top_srcdir)/gegl \
        -I$(top_builddir)/gegl/buffer \
        -I$(top_srcdir)/gegl/buffer \